Digital display of skiascope

Abstract

The invention relates to the technical field of ophthalmology medical equipment, and particularly discloses a skiascope digital display which comprises a beam splitter prism table and a digital camera, a top fixing seat is arranged at the upper end of the beam splitter prism table, a cylinder is arranged at the single end of the top fixing seat, and the digital camera is arranged on the cylinder; a skiascopy observation hole is formed in the front end of the beam splitter prism base, a butt joint hole is formed in the rear end of the beam splitter prism base and communicated with the skiascopy observation hole, an observation hole clamping groove is formed in the position of the butt joint hole in the rear end of the beam splitter prism base, a through hole is formed in the beam splitter prism base, and a beam splitter prism is arranged at the position where the through hole, the skiascopy observation hole and the butt joint hole are communicated. Through the built-in beam splitter prism, an image observed by a student is synchronized to the digital camera through the prism and is displayed on the camera display. During practical operation of students, a teacher can observe a camera display, synchronously know the operation process of the students and timely know which step an error is in, correction is targeted, and the skiascopy skill of the students is quickly improved.

Description

Technical Field

[0001] The invention relates to the technical field of ophthalmic medical equipment, in particular to a retinoscope digital display. Background Art

[0002] As the country has made myopia prevention and control a national policy, there is still a long way to go in myopia prevention and control work; currently, retinoscopy is a very important means of refractive examination, especially for special patients, such as patients with low vision, cloudy eyes, cataracts, nystagmus, etc., who cannot complete the refractive test with a general computer ophthalmometer. At this time, the only way to complete it is to use retinoscopy, so the skill of refractive examination and retinoscopy is an important learning content that all optometrists must master; what is most lacking at present is professional talents in this field, so optometry education is the top priority to solve the problem of such talents, but retinoscopy skills are the most cumbersome task in the learning process. With technology, during the practical teaching stage, teachers cannot directly observe whether students are right or wrong in the retinoscopy operation process, and it depends entirely on students' self-study ability and understanding. Therefore, teachers cannot provide timely guidance to students, resulting in students' retinoscopy skills not meeting the standards. After graduation, they cannot serve patients well in their posts, which brings great confusion to teaching. In addition, during the operation of the existing retinoscope, only students can observe the changes in the image, and teachers cannot observe synchronously. They can only provide guidance based on students' descriptions. Sometimes, the answers are irrelevant to the questions and the text is irrelevant to the topic, which causes great misunderstandings and makes teaching very difficult.

[0003] Therefore, in view of the technical problems described above, a retinoscope digital display is urgently needed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide a retinoscope digital display.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is a retinoscope digital display, comprising:

[0006] A beam splitter prism seat and a digital camera, wherein the beam splitter prism seat has a top fixing seat at its upper end, a cylinder is provided on one end of the top fixing seat, and a digital camera is provided on the cylinder;

[0007] A retinoscopy observation hole is provided at the front end of the dichroic prism seat, and a docking hole is provided at the rear end of the dichroic prism seat. The docking hole is connected to the retinoscopy observation hole, and an observation hole slot is provided at the position of the docking hole at the rear end of the dichroic prism seat. A through hole is provided in the dichroic prism seat, and the upper end of the through hole passes through the top fixing seat and then connects to the cylinder. The lower end of the through hole is connected to the retinoscopy observation hole and the docking hole, and a dichroic prism is provided at the position where the through hole, the retinoscopy observation hole and the docking hole are connected.

[0008] The advantages of the present invention compared with the prior art are:

[0009] 1. It is equipped with a beam splitter prism seat, which is installed on the retinoscope through the beam splitter prism seat, and the camera of the digital camera is placed in the cylinder. In this way, the image observed by the students is synchronized to the digital camera through the built-in beam splitter prism, and then displayed on the camera monitor; it solves the existing teaching difficulties; when the students are practicing, the teacher can observe the camera monitor to synchronously understand the students' operation process, timely understand the step where the error is, and correct it in a targeted manner, which can quickly improve the students' retinoscopy skills, cultivate more professional talents, and better serve the majority of consumers;

[0010] 2. The digital camera is installed on the upper part, so that the operator can use it with either the left or right eye. It is suitable for all kinds of optometrists' retinoscopy habits and facilitates retinoscopy operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a rear view of a digital display of a retinoscope of the present invention.

[0012] Figure 2 The utility model is a side view of a retinoscope digital display of the present invention.

[0013] Figure 3 The utility model is a schematic diagram of the upward-viewing three-dimensional structure of a retinoscope digital display of the present invention.

[0014] Figure 4 The utility model is a rear-view stereoscopic structural schematic diagram of a retinoscope digital display of the present invention.

[0015] Figure 5 yes Figure 1 Cross-sectional view at AA in the middle.

[0016] As shown in the figure:

[0017] 100. dichroic prism seat, 101. top fixing seat, 102. cylinder, 103. retinoscopy observation hole, 104. docking hole, 105. observation hole slot, 106. through hole, 107. dichroic prism, 200. digital camera. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Combined with Figure 1-5 , a retinoscope digital display, comprising:

[0020] A beam splitter prism seat 100 and a digital camera 200, wherein a top fixing seat 101 is disposed at the upper end of the beam splitter prism seat 100, a cylinder 102 is disposed at one end of the top fixing seat 101, and a digital camera 200 is disposed on the cylinder 102, and the cylinder 102 serves as a mounting bracket for the digital camera 200, and a lens of the digital camera 200 is inserted into the cylinder 102 when in use;

[0021] The front end of the dichroic prism seat 100 is provided with a retinoscopy observation hole 103, and the rear end of the dichroic prism seat 100 is provided with a docking hole 104, and the docking hole 104 is connected with the retinoscopy observation hole 103. The position of the docking hole 104 at the rear end of the dichroic prism seat 100 is provided with an observation hole card slot 105, and the observation hole card slot 105 and the retinoscopy can be stuck together, so that the observation hole on the retinoscopy and the docking hole 104 can be coaxial, so that the reflected light of the retinoscopy is projected into the docking hole 104, and the student can observe the image reflected by the scene through the retinoscopy observation hole 103. A through hole 106 is provided, the upper end of the through hole 106 passes through the top fixing seat 101 and then connects to the cylinder 102, the lower end of the through hole 106 is connected to the retinoscopy observation hole 103 and the docking hole 104, and a dichroic prism 107 is provided at the position where the through hole 106, the retinoscopy observation hole 103 and the docking hole 104 are connected. The dichroic prism 107 ensures that 50% of the light and shadow reach the observer's eyes along the original light path; the other 50% of the light and shadow are refracted 45 degrees to reach the camera lens of the digital camera 200, and finally displayed on the display of the digital camera 200, so that the training teacher can observe synchronously.

[0022] When the present invention is implemented,

[0023] When in use, the retinoscope digital display is mounted on the retinoscope through the dichroic prism seat 100 and the top fixing seat 10, and the retinoscope can be snapped together through the observation hole card slot 105, so that the observation hole on the retinoscope and the docking hole 104 can be coaxial, so that the reflected light of the retinoscope is projected into the docking hole 104, and the lens of the digital camera 200 is inserted into the cylinder 102;

[0024] The user can observe from the retinoscope observation hole 103, and the image light and shadow seen by the retinoscope will enter the docking hole 104, and the dichroic prism 107 will make 50% of the light and shadow reach the observer's eyes according to the original light path; the other 50% of the light and shadow will be refracted 45 degrees to reach the camera lens of the digital camera 200, and finally displayed on the display of the digital camera 200, so that the training teacher can observe synchronously;

[0025] The digital camera 200 is mounted on the upper part of the cylinder 102 so that the operator can use it with either the left or right eye, which is suitable for the retinoscopy habits of various optometrists and facilitates retinoscopy operations.

[0026] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the embodiments of the present invention, "plurality" means at least 2.

[0029] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A retinoscope digital display, characterized in that: include: A beam splitter prism seat (100) and a digital camera (200), wherein a top fixing seat (101) is provided at the upper end of the beam splitter prism seat (100), a cylinder (102) is provided at one end of the top fixing seat (101), and the digital camera (200) is provided on the cylinder (102); The front end of the dichroic prism seat (100) is provided with a retinoscopy observation hole (103), and the rear end of the dichroic prism seat (100) is provided with a docking hole (104), the docking hole (104) and the retinoscopy observation hole (103) are connected, and an observation hole slot (105) is provided at the position of the docking hole (104) at the rear end of the dichroic prism seat (100), and a through hole (106) is provided in the dichroic prism seat (100), the upper end of the through hole (106) passes through the top fixing seat (101) and then connects to the cylinder (102), the lower end of the through hole (106) is connected to the retinoscopy observation hole (103) and the docking hole (104), and a dichroic prism (107) is provided at the position where the through hole (106), the retinoscopy observation hole (103) and the docking hole (104) are connected.

Images